Computer display screen or portion thereof with a graphical user interface



The FIGURE is a front view of a computer display screen or portion thereof with a graphical user interface according to our invention.

The claimed design is illustrated in a gray scale. The claimed design includes shading which portrays a contrast to surrounding features and to the environment. Any shading that appears at the same density of shading yet at different locations portrays the same contrast to surrounding features and to the environment.

The longer broken-line showing of a portion of a computer and the intermediate-length broken-line showing of a display screen of the computer, as well as the features within the interface shown in still shorter broken-lines, are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a computer display screen or portion thereof with a graphical user interface, as shown and described. 